Electrically-heated oven.



F. J. 000K. I ELBGTRIOALLY HEATED OVEN. I APPLICATION FILED AUG. 31, 1909.

Patented Apr. 4, 1911.

WITNESSES:

ATTORNEYS ELECTBICALLY-HEATED OVEN.

v Specification of Eettcrs Patent.

Patented Apr. 41, 1911.

Application filed August 31, 1909. Serial No. 515,442.

To all whom it may concern:

Be it known that I, FRANK J. Goon, a citizen of the United. States, and a resident of Collinwood, in the county of Cuyah'oga and State of Ohio, have invented'a new and Improved Electrically-Heated Oven, of which the following is a full, clear, and exact description.

My invention relates to elcctrically-heated ovens, my more particular purpose being to provide a construction comprising one or more heat radiatingslabs made 01"? stone and especially adapted for receiving and holding the heating wire.

lily construction is of special service relative to ovens used for baking, warming, and enanieling; also in connection with pancake griddles, broilers, toasters, chafingdishes, and hot plates. The heat radiating slab which I use and which operated 'electrieally, is suitable for general cooking and for use in tireless cookers, hot water heater-S, and cotfeepercolators, as well as for heating rooms, and is employed in various other 1'elations.

Reference is to he had to the accompanying drawings forming a part of this specification, in which similar characters of refcrcncc indicate corresponding parts in all the figures.

Figure 1 is a cross section of my improved term of even, which comprises a. number of stavcsv having generally the form 'o'l sectors and built into substantially cylindrical shape. Fig. 2 is a section on the line 8 8 of Fig. l, lookingrin the direction oiithe arrow, and showii'igg the arrangement of the channels and poles for accommodating the heating wire.

i\ numhcr of staves 339 made oi stone have each a segmental term, the several slaves lacing held together by hoops 40 and provided with channels ll. l lachstave is lurther provided with holes 12, 4;), i l, these holes together with the channels 41. being adapted to acconnnodate theheating wire ii, which is hent simiously hack and forth l l l l 1. l l l l .ploy a direct application of heat relatively to the various staves. The heat-- ing' wire is thus disposed between the inner and outer walls or surfaces of the receptacle. Each stave is provided upon one only of its edges with one of the channels 41, the holes 4 l3, 4t merging into this channel, as will he understood from Fig. 2.

."imong the various advantages presented by my invention are the following: I. I emto the stone or to the heat retaining elemcnt.- II. Heat is forced to pass directly through the stone owing to the fact thatone side of the stone is titled against heat-resisting material, so that heat can escape only in the direction opposite such material. ill. The life of the heating; wire is greatly prolonged, owing to the fact that the heat from the Wire is absorbed. quite readily by the stone. IV. The amount oi. current required to operate this device is quite small in proportion to the heating results. V. The construction is quite cheap and simple.

\Vhile for convenience l SllQYVmthlS form for my oven, I do not limit myself to the precise construction disclosed. Neither do I limit myself to the use of any particular materials except as specified in the claim.

Having thus described myinvention, claim as new and desire to secure by Letters Patent:

v I The combination of a number of stnves each made of stone and provided upon one of its edges only with a channel, each stave being further provided with holes merging into said channel, and a heating Wire tl'arcadcd hack and forth through the several channels and extending through said holes from one channel to another.

in testimony whereof I have signed my name to this spccilication in the presence ol two suhscrlhur; witnesses.

FRANK J AM EH COOK.

Witnesses:

G. S'. RnnMAn, A. J. (lmswono. 

